Combined harrow and clod-crusher.



J. F. BOES.

COMBINED HARROW AND GLOD ORUSHEB.

APPLICATION FILED SEPT. 20, 1913.

1 9 1 07,480, Patented Aug. 18, 1914,

i Vi

WITNESSES: INVENTOH M/L/U/ v )"TOHIIEV UNITED STATES PATENT QFFICE.

JACOB F. BOES,

OF BAY CITY, MICHIGAN.

COMBINED HARROW AND CLOD-CBUSHER.

To all whom it may concern Be it known that I, JACOB F. Does, a citizenof the United States of America, residing at Bay City, in the county ofBay and State of Michigan, have invented certain new and usefulImprovements in; a Combined Harrow and Clod-Crusher; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to improvements in a combined harrow and clodcrusher, and its object is to provide a device that will effectuallyharrow and disintegrate the soil, and at the same time crush andpulverize the clods therein, and to provide the same with various newand useful features hereinafter more fully described and particularlypointed out in the claims, reference being had to the accompanyingdrawings, in which Figure l is a perspective of a device embodying myinvention; and Fig. 2 is a detail showing the method of supporting thebar 10.

Like numbers refer to like parts in both of the figures.

The main frame of the device consists of two beams 1 and 2 arrangedparallel and spaced apart and also connected by bars 3 rigidly attachedthereto. These beams are each inclined upward at the forward edge bymeans of wedge blocks 4: interposed be tween the beams and the bars withthe thick end toward the rear. Intermediate these beams, arranged.parallel and spaced apart from each other and the beams, are threesmaller beams 5, 6, and 10, the beams 5 and 6 being secured to bars 7arranged at intervals transversely thereof and each hinged at theforward end to the forward beam 1 and free to rise and fall at the rear.The middle beam 10 is supported below the bars 7 by means of verticalbolts 12 and 14, pivoted at their lower ends to horizontal bolts 13extending through the beam 10. The forward bolt 12 is yieldablysupported by a coiled spring 11, and the bolt 14 is fixed in the bar 7.All the beams except the middle beam 10 are provided with drag teeth 15extending downward and rearward through the same, and thus adapted torise over any obstructions engaged thereby. In

Specification of Letters Patent.

Application filed September 20, 1913.

Patented Aug. 18, 1914.

Serial No. 790,905.

addition thereto the beams 1 and 2 are provided. with metallic plates 16and 17 attached to the under side thereof and extending rearwardly anddownwardly therefrom, and the middle beam 10 is provided with a verticalplate 18 extending below the same. The device is also provided with theusual drag chains 19 to attach a team thereto.

To adjust the beams 5, 6, and 10, relative to the main frame, arms 8 arerigidly mounted on two of the pivoted bars 7 and extending rearwardlyover the rear beam 2 are vertically adjustable in yokes 9 mounted 011said rear beam. In operation, as the beam 1 moves forward, the dragteeth loosen up the soil and the plate 16 will smooth the surface of thesame and crush any clods or lumps of earth engaged thereby. The teeth inthe beam 5 will then again disintegrate the soil and the scraper plate18 again smooth the surface of the same without compressing it. Shouldthis plate strike any unyielding obstruction, the springs 11 will yieldand allow the beam 10 to swing rearward and downward, and thus permitthe plate to slide over the obstruction. The drag teeth in the beams 6and 2 again thoroughly disintegrate the soil and the inclined plate 17finally smooths the surface thereof, leaving the soil smooth and wellpulverized.

What I claim is 1. A combined harrow and clod crusher, comprising frontand rear beams arranged parallel and spaced apart, bars connecting thebeams, beams intermediate the front and rear beams, bars pivoted to thefront beam and attached to the intermediate beams, inclined drag teethinserted in the bars, plates attached to the front and rear beams andextending rearwardly and downwardly therefrom, and means for verticallyadjusting the intermediate beams.

2. A combined harrow and clod crusher, comprising front and rear beamsspaced apart, bars connecting said beams and attached thereto, wedgeblocks between the bars and beams, plates attached to the beams andextending rearwardly and downwardly therefrom, intermediate beamsparallel with the front and rear beams and spaced apart, bars pivoted tothe front beam and attached to the intermediate beams, means forvertically adjusting said intermediate beams, drag teeth in the beamsand rearwardly inclined at the lower end, and a middle beam having ascraper plate attached v thereto.

3. A combined harrow and clod crusher, 5 comprising front and rear beamsspaced apart and transversely inclined downward and rearward, platesattached to the under side of said beams, bars connecting said beams,two intermediate beams parallel with 13 the front and rear beams andspaced apart,- bars pivoted to the front beam and rigidly attached tosaid intermediate beams, means for vertically adjusting the saidintermediate beams, a middle beam yieldably connected to the pivotedbars and adapted 15 to swing downward and rearward, and a scraper plateattached to the middle beam.

In testimony whereof I aflix my signature in presence of two witnesses.

JACOB F. BOES.

Copies of this patent ma be obtained. for five cents each, by addressingthe Commissioner of Patents,

. Washington, D. G.

